Does anyone know what the shirts the Nats' players have been wearing with "22f" is supposed to mean? Tyler Moore's wearing it in the interview with Akra and saw Det wearing it in the post-game interview last night.

Does anyone know what the shirts the Nats' players have been wearing with "22f" is supposed to mean? Tyler Moore's wearing it in the interview with Akra and saw Det wearing it in the post-game interview last night.